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description and behaviour

...in South and Central America. They are commonly triangular-headed and have enlarged hind feet. Some are brightly coloured in black with yellow, red, or green. When molested, the small poisonous
Melanophryniscus stelzneri of Uruguay bends its head and limbs over its body to display its bright orange hands and feet. This position may be a method of warning the intruder of the toxicity of...